DC Generators When two D.C. generators are running in parallel an equalizer bar is used To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the generated e.m.f. To increase the series flux To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the generated e.m.f. To increase the series flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to check armature insulation resistance increase the speed of primemover reverse the field connections increase the field resistance check armature insulation resistance increase the speed of primemover reverse the field connections increase the field resistance ANSWER DOWNLOAD EXAMIANS APP
DC Generators The commutator pitch for simplex lap winding is equal to Numbers of poles in the machine None of the listed here Number of pairs of poles 1 Numbers of poles in the machine None of the listed here Number of pairs of poles 1 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator means its None of the listed here Electrical efficiency Overall efficiency Mechanical efficiency None of the listed here Electrical efficiency Overall efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine is made of ______ Soft iron Silocon steel Wrought iron Cast steel Soft iron Silocon steel Wrought iron Cast steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is ______ winding. Partly open circuit and partly closed circuit An open circuit None of the listed here A closed circuit Partly open circuit and partly closed circuit An open circuit None of the listed here A closed circuit ANSWER DOWNLOAD EXAMIANS APP
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